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Quick quality check? The quality-control department at an automobile factory checks the tightness of motor-mounting bolts installed by assembly-line workers by sampling the rst 25 cars produced by the assembly line each day. Explain why this sampling method is biased. Is this method likely to overestimate or underestimate the proportion of bolts that are improperly tightened? Yelping reviews Many websites include customer reviews of products, restaurants, hotels, and so on. The manager of a hotel was upset to see that 26% of reviewers on a travel website gave the hotel a \"1 star\" ratingthe lowest possible rating. Explain why this sampling method is biased. Is 26% likely greater than or less than the percentage of all the hotel's customers who would give the hotel 1 star? Explain